Craftsman 536.270321 Manual página 29

HOW TO ADJUST THE ATTACHMENT CLUTCH
WARNING: To prevent an injury, the attachment
clutch must operate correctly.
In normal usage, the attachment clutch will not require an
adjustment. However, if the cutting performance decreases or the
quality of cut is poor, make the following changes.
1. When you mow, make sure the throttle control in in the FAST
position.
2. Move the attachment clutch to the DISENGAGE position
(Figure 30).
3. Stop the engine. Disconnect the wire from the spark plug.
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SERVICE AND ADJUSTMENT
Disengage
Position
Attachment Clutch
Engage Position
Figure 30
4. Check the blade(s). Keep a sharp edge on the blade(s). A blade
that is not sharp will cause the tips of the grass to become
brown.
5. If the quality of cut has not improved, replace the mower drive
belt. See "How To Replace The Mower Drive Belt". If replacing
the belt does not correct the problem, take the unit to a Sears
or other qualified service center.
6. Move the attachment clutch to the DISENGAGE position.
Stop the engine. Disconnect the wire from the spark plug.
7. Check the operation of the blade brake. Rotate the pulley with
your hand. Make sure the brake pad is pressed tightly against
the pulley (Figure 31).
WARNING: If the brake pad does not press tightly
against the pulley, take the unit to a Sears or other qu-
alified service center.
8. Move the attachment clutch to the ENGAGE position.
9. Check the pad for the blade brake. If the pad is excessively
worn or damaged, replace the brake pad assemblies. Correct
replacement parts and assistance are available from a Sears
service center.
10. Attach the wire to the spark plug. Mow for a short distance and
again check the operation of the attachment clutch.
11. When you move the attachment clutch to the DISENGAGE
position, all movement will stop within five seconds. If there is
movement of the belt or the blades continue to rotate, engage
and disengage the attachment clutch five times to remove
any excess rubber from a new mower drive belt. If you need
assistance, take the unit to a Sears or other qualified service
center.
(Pad Against Pulley)
29
Blade Brake
Figure 31